<form action="" method="post">
    <p>
    密码：<input type="password" name="pwd" placeholder="新密码" />
    </p>
    <p>
    密码：<input type="password" name="repwd" placeholder="重复密码" />
    </p>
    <p>
    <input type="submit" value="确认" />
    </p>
</form>